This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | -7 |
| 4 | 64 |
| 5 | -84 |
| 6 | 21 |
| 7 | 512 |
| 8 | -896 |
| 9 | 224 |
| 10 | 196 |
| 11 | -35 |
| 12 | 4096 |
| 13 | -8960 |
| 14 | 2240 |
| 15 | 3920 |
| 16 | -350 |
| 17 | -980 |
| 18 | 35 |
| 19 | 32768 |
| 20 | -86016 |
| 21 | 21504 |
| 22 | 56448 |
| 23 | -3360 |
| 24 | -18816 |
| 25 | 336 |
| 26 | -5488 |
| 27 | 1470 |
| 28 | 1176 |
| 29 | -21 |
| 30 | 262144 |
| 31 | -802816 |
| 32 | 200704 |
| 33 | 702464 |
| 34 | -31360 |
| 35 | -263424 |
| 36 | 3136 |
| 37 | -153664 |
| 38 | 27440 |
| 39 | 21952 |
| 40 | -196 |
| 41 | 38416 |
| 42 | -1372 |
| 43 | -3430 |
| 44 | 7 |